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arXiv · 1101.1588

Synthesis and Thermal Stability of Cubic ZnO in the Salt Nanocomposites

P. S. Sokolov·A. N. Baranov·Zh. V. Dobrokhotova·V. L. Solozhenko
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Abstract

Cubic zinc oxide (rs-ZnO), metastable under normal conditions, was synthesized from the wurtzite modification (w-ZnO) at 7.7 GPa and ~800 K in the form of nanoparticles isolated in the NaCl matrix. The phase transition rs-ZnO \rightarrow w-ZnO in nanocrystalline zinc oxide under ambient pressure was experimentally studied for the first time by differential scanning calorimetry and high-temperature X-ray diffraction. It was shown that the transition occurs in the 370-430 K temperature range and its enthalpy at 400 K is -10.2 \pm 0.5 kJ mol-1.

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P. S. Sokolov, A. N. Baranov, Zh. V. Dobrokhotova, V. L. Solozhenko. 2011-01-08. Synthesis and Thermal Stability of Cubic ZnO in the Salt Nanocomposites. https://doi.org/10.1007/s11172-010-0082-7

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